CMWSSB Complaint Analytics
Chennai Metro Water · Complaint Intelligence
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Showing DEP 119 04 Mar 2025, 18:42 – 02 Sep 2026, 09:04
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📈
Overall trend
106 complaints in this window
⚠️
Rising issue (last 30 days)
Sewer Main Block ▲ +7 · 700%
Open backlog
0 open / escalated · 100% closed
📍
Fastest-recurring hotspot
Venkatachalam Street · Sewer Main Block ×66 · 3.62/mo
106
Total Complaints
106
Closed · 100%
0
Open / Escalated
1
Streets Affected
60
Distinct Complainants
Reporting Period
04 Mar 2025, 18:42
02 Sep 2026, 09:04
Download report: 📄 Overview PDF 📄 Street×Category PDF 📄 Recurrence PDF ⬇ Street Frequency CSV ⬇ Full data CSV

Complaint Categories

CSV

Monthly Trend (with 3-month average)

Status

Complaint Mode

Top Streets

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StreetDepotComplaintsPeople
Venkatachalam Street DEP 119 106 60

🛠 Sewer Complaints (main block · house block · overflow)

CSV PDF
StreetDepotSewerPeople
Venkatachalam Street 119 79 43

🚰 Water Complaints (no supply · short supply · leaks)

CSV PDF
StreetDepotWaterPeople
Venkatachalam Street 119 21 16

💧 Water Pollution (pollution complaints)

CSV PDF
StreetDepotPollut.People
Venkatachalam Street 119 4 4

🔁 Recurrence — how often the same issue comes back (same category · same street)

PDF
CategoryStreetDepotTimesSpan (days)Avg gap (days)Per month
Sewer Main Block Venkatachalam Street 119 66 547 8.4 3.62
No Water Supply Venkatachalam Street 119 20 507 26.7 1.18
Sewer - House Block Venkatachalam Street 119 11 384 38.4 0.86
Water Pollution Venkatachalam Street 119 4 318 105.9 0.38

Avg gap = average days between consecutive complaints of that type on that street. Lower gap / higher “per month” = a faster-recurring, unresolved problem.

🔬 Advanced Analysis

Pareto — the vital few (which categories drive most complaints)

Categories ordered by volume with their cumulative share. The highlighted rows are the smallest set that together account for ~80% of all complaints — fix these first.

CategoryCountShareCumulative
Sewer Main Block vital 66 62.3% 62.3%
No Water Supply vital 20 18.9% 81.1%
Sewer - House Block 11 10.4% 91.5%
Water Pollution 4 3.8% 95.3%
Others 2 1.9% 97.2%
Sewer Machine Hole Open (or) Broken 2 1.9% 99.1%
Water Leakage in Service Line / Main Line 1 0.9% 100%

When complaints arrive (weekday × time of day)

Load pattern across the week — darker cells are busier six-hour windows. Useful for staffing and planning proactive checks before the peak.

NightMorningAfternoonEveningTotal
Mon 11 7 18
Tue 11 8 4 23
Wed 7 5 2 14
Thu 7 5 1 13
Fri 9 6 1 16
Sat 6 4 3 13
Sun 4 4 1 9
Total 0553912 106

Linked problems (category pairs that hit the same streets)

Pairs of issue types that recur together on the same street, ranked by the number of streets where both appear. Strong pairs point to a shared root cause worth fixing in one visit.

Problem AProblem BShared streets
Not enough overlapping complaints in this scope.